CHAPTER 1

Adding two positive numbers	Adding two negative numbers

You may want to prepare for Algebra next year by thinking about subtraction as a form of addition

adding a negative and positive number

subtracting two positive numbers

If you start at 6 on the number line then move three backwards you end at 3. Therefore three is the answer

subtracting two negative numbers

-4--3=-1
the two negative signs in the middle mean you add, this looks like this
-4+3=-1

subtracting a negative from a positive number

Its the same as adding -1 to -4
so it looks like this
-4+-1=-5

subtracting a positive from a negative number

4-(-4)

with two negative signs next to each other you add 4 and 4 to get 8
it looks like this
4+4=8
6-(-8)=
6+8=14

rounding decimals

By, Owen Bass


hope this helps sorry i couldnt get the pictures but this is for X and / powers of ten

http://www.mathsteacher.com.au/year7/ch06_decimals/07_mult_pow/ten.htm

By, Colton Saunders

In preparation for Algebra, you may want to think of division as a form of multiplication